From b6d3f000b981826589d78733ad358bc5ea204a30 Mon Sep 17 00:00:00 2001
From: Ali Gholami Rudi <ali@rudi.ir>
Date: Wed, 2 May 2012 00:28:35 +0430
Subject: [PATCH] pad: improve the hash function

Note that in ascii table, characters 0-31 are non-printable.
---
 pad.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pad.c b/pad.c
index 9dc003e..61382a3 100644
--- a/pad.c
+++ b/pad.c
@@ -97,7 +97,7 @@ static struct glyph {
 
 static struct glyph *glyph_entry(int c, int fn, int fg, int bg)
 {
-	return &glyphs[(c ^ (fg << 7) ^ (bg << 6) ^ (fn << 8)) & (NCACHE - 1)];
+	return &glyphs[((c - 32) ^ (fg << 6) ^ (bg << 5) ^ (fn << 8)) & (NCACHE - 1)];
 }
 
 static fbval_t *glyph_cache(int c, int fn, short fg, short bg)
-- 
2.11.4.GIT